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v1.0.0
ICD-10 Guide
DiagnosesSevere Mitral Regurgitation

Severe Mitral Regurgitation

ICD-10 Coding for Severe Mitral Regurgitation(I34.0)

PRIMARY SPECIALTYCardiology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Severe Mitral Regurgitation?
Essential facts and insights about Severe Mitral Regurgitation

Key Clinical Considerations:

  • Symptoms include dyspnea, fatigue, palpitations, and orthopnea.
  • Echocardiogram showing significant regurgitant flow and left atrial enlargement.
  • Physical exam may reveal a holosystolic murmur at the apex, displaced apical impulse, and signs of heart failure.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document severity of regurgitation, associated symptoms, and any heart failure signs.
  • Use specific terms like 'severe mitral regurgitation' and 'left atrial enlargement'.
  • Example: 'Patient presents with severe mitral regurgitation confirmed by echocardiogram, exhibiting symptoms of heart failure.'

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for distinguishing between acute and chronic mitral regurgitation.
  • Common errors include misclassifying severity and omitting relevant symptoms.

Code Exclusions

Important Exclusions

  • Rheumatic heart disease, congenital mitral valve defects, and other valvular heart diseases.
  • Alternative codes for mild or moderate mitral regurgitation.

Related ICD-10 Codes

Primary Codes
I34.0
Nonrheumatic mitral valve insufficiency
I34.1
Nonrheumatic mitral valve insufficiency, severe
Ancillary Codes
I50.9
Differential Codes
I05.1
I05.1
if there is a history of rheumatic fever.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

  • Adults with underlying heart conditions, particularly those with rheumatic heart disease or degenerative valve disease.
  • Cardiology clinics, hospitals, and outpatient settings.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Include detailed patient history, physical exam findings, and diagnostic test results.

Billing considerations?

Ensure accurate coding to reflect severity for appropriate reimbursement.